biden. before that happened, johns hopkins university held a conference on gun violence with the panel focusing on background checks. it's just over two hours. >> i'm going go ahead and get our afternoon session underway. so we are going to continue focusing on what i consider a primary question of how do we keep guns from dangerous people? and so our next speaker is -- gave that fantastic presentation before lunch and she's going pick it back up with an interesting study he's done looking at many, many, many gun shows. so. it's all yours, gary. >> welcome back. let me tell you this, at the lunch you had is a long way better than the food you get at the gun show. [laughter] so this is my topic, and i will say this, that in consideration of comprehensive background checks, what gun shows can tell us is what private parties sales look like. this is going to be -- the post lecture. it's the lecture with no data. i believe there are three numbers and one decimal point in the talk. [laughter] yea